If the traffic controller’s arms are extended to the sides or lowered, traffic of non-rail vehicles from the controller’s left and right sides is permitted:

Explanation

When the controller's arms are extended to the sides or lowered, non-rail vehicles approaching from his left and right sides may go straight or turn right. 'Straight only' is the rule for trams, not for non-rail vehicles (Rules, point 16, subpoint 2).